Destination State   &   &   \checkmark & \checkmark & \checkmark & \checkmark & \checkmark \\
\ $\times$ Census year   &   &   &   \checkmark & \checkmark & \checkmark & \checkmark \\
\ $\times$ Birth State   &   &   &   &   \checkmark & \checkmark & \checkmark \\
\ $\times$ Relative-year-of-birth   &   &   &   &   &   \checkmark & \checkmark \\
\ $\times$ High Parental Communalism   &   &   &   &   &   &   \checkmark \\
Geoclimatic Controls   &   \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark \\
Smooth Location Controls   &   \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark \\
